| // Copyright 2016 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #ifndef CORE_FXCODEC_CODEC_CCODEC_GIFMODULE_H_ |
| #define CORE_FXCODEC_CODEC_CCODEC_GIFMODULE_H_ |
| |
| #include <memory> |
| |
| #include "core/fxcodec/lgif/fx_gif.h" |
| #include "core/fxcrt/fx_coordinates.h" |
| #include "core/fxcrt/fx_system.h" |
| |
| class CFX_DIBAttribute; |
| |
| class CCodec_GifModule { |
| public: |
| class Delegate { |
| public: |
| virtual void GifRecordCurrentPosition(uint32_t& cur_pos) = 0; |
| virtual bool GifInputRecordPositionBuf(uint32_t rcd_pos, |
| const FX_RECT& img_rc, |
| int32_t pal_num, |
| void* pal_ptr, |
| int32_t delay_time, |
| bool user_input, |
| int32_t trans_index, |
| int32_t disposal_method, |
| bool interlace) = 0; |
| virtual void GifReadScanline(int32_t row_num, uint8_t* row_buf) = 0; |
| }; |
| |
| CCodec_GifModule(); |
| ~CCodec_GifModule(); |
| |
| std::unique_ptr<CGifContext> Start(); |
| uint32_t GetAvailInput(CGifContext* context, |
| uint8_t** avail_buf_ptr = nullptr); |
| |
| void Input(CGifContext* context, const uint8_t* src_buf, uint32_t src_size); |
| |
| GifDecodeStatus ReadHeader(CGifContext* context, |
| int* width, |
| int* height, |
| int* pal_num, |
| void** pal_pp, |
| int* bg_index, |
| CFX_DIBAttribute* pAttribute); |
| |
| GifDecodeStatus LoadFrameInfo(CGifContext* context, int* frame_num); |
| GifDecodeStatus LoadFrame(CGifContext* context, |
| int frame_num, |
| CFX_DIBAttribute* pAttribute); |
| |
| Delegate* GetDelegate() const { return m_pDelegate; } |
| void SetDelegate(Delegate* pDelegate) { m_pDelegate = pDelegate; } |
| |
| protected: |
| Delegate* m_pDelegate; |
| char m_szLastError[256]; |
| }; |
| |
| #endif // CORE_FXCODEC_CODEC_CCODEC_GIFMODULE_H_ |